210 Journal New York Entomological Society, t^'o'- xxii. 



Female, length, 55 mm.; wing, 22.5 mm.; abdomen, 48.5 mm. 



Fore leg, femur, 11.5 mm. 



Middle leg, femur, 16 mm.; tibia, 18.5 mm.; tarsus /, 22 mm.; 2, 

 10.75 """"i- ; 5> 6 xwvci. 



Hind leg, femur, 19 mm.; tibia, 22 mm.; tarsus J, 20 mm.; 2, 10.5 

 mnL ; 5, 5.5 mm. 



Head whitish ; occiput for the most part blackish brown, vertex 

 pale brownish. Prolongation of the frontal part of the head scarcely 

 one-quarter as long as the remaining length of the head. Palpi 

 greenish, the last segment greyish black. Antennae short (2.25 mm. 

 long) very thin and delicate, 13-segmented, pale, the tips of the very 

 slender flagellar segments grey, the last five flagellar segments entirely 

 grey, basal segments greenish; at the end of each flagellar segment 

 rather long fine hairs, somewhat verticillate. Forehead broad; 

 tubercle lacking. 



Thorax gibbous, extending far forward and projecting over the 

 head so that viewed from above nothing is to be seen of the latter. 

 Thoracic dorsum dark brown, a broad seam in front; a narrower 

 seam on the sides up to the wing-root yellowish white ; the dark 

 brown color extends to the cephalic margin as a moderately broad 

 stripe. Pra?scutum with a somewhat elevated blackish-brown median 

 line. Scutum brown, very level. Postnotum long, brown, whitish 

 yellow on the sides with an impressed crossline on the middle which 

 forms an obtuse angle medially (concave in front) and from this 

 angle sends out an impressed longitudinal line backward. Mcta- 

 pleurse greyish brown. Prothorax greyish brown medially, whitish 

 elsewhere. Abdomen extremely long and slender, dark brown above, 

 ochre-yellow beneath, on tlic middle of the tergites one to three there 

 is a sharp pale crossline, on tergites four to seven a light spot on 

 each side of the middle ; eighth segment short, scarcely one and one- 

 half times as long as broad; genital segment with the moderately 

 elongated and rather powerful ovipositor reddish brown, polished, 

 smooth, and 6 mm. long. Fore femora pale greyish green with a 

 narrow brown ring before the tip. Middle legs blackish brown, the 

 tibirc with a very broad white ring before the tip; almost the apical 

 half of tarsal segments one and two white, the third tarsal segment 

 entirely white, remaining segments broken. Hind femora reddish 

 yellow, darker brown at the tip; tibi;e blackish brown with a broad 



